CN107182124A - A kind of high-precision locating method and device based on grid - Google Patents
A kind of high-precision locating method and device based on grid Download PDFInfo
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- CN107182124A CN107182124A CN201710358449.9A CN201710358449A CN107182124A CN 107182124 A CN107182124 A CN 107182124A CN 201710358449 A CN201710358449 A CN 201710358449A CN 107182124 A CN107182124 A CN 107182124A
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- grid
- difference information
- grid code
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The embodiment of the present invention provides a kind of high-precision locating method and device based on grid, belongs to the communication technology and technical field of satellite, including：According to Sphere Measurement Model, earth surface is classified to the level grid for being divided into close paving form, the recognizable level grid code collection for including location information corresponding with the level grids at different levels is regenerated；Obtain the difference information that the level grid code concentrates each grid code, the level grid code collection and the difference information collection are passed through including radio station, the form of TV station or mobile communication base station is outwards broadcasted, pass through " first asking complexity in the prior art, after calculate, service again " it is serial, active service mode, it is changed into the parallel of simple " reception+matching ", passive service mode, solve the bottleneck of the number of users limitation of high precision position service, reduce the use cost of user, alleviate the pressure and communication bandwidth pressure of hind computation, improve the security of system of service platform.
Description
Technical field
The present embodiments relate to the communication technology and technical field of satellite, more particularly to a kind of height based on grid
Precision positioning methods and device.
Background technology
In process of the present invention is realized, inventor has found that at least there are the following problems in the prior art：
At present, the operation principle of ground strengthening system is：User obtains the longitude and latitude position of oneself by satellite navigation system
Postpone, need that the position of oneself first is sent into service centre, service centre calculates according to the GNSS reference base station data near user
Ionosphere, satellite orbit and the satellite clock equal error correction value of user region, and be sent to user terminal and resolved.
Generally, ground strengthening system is using the technical system of " first ask, then calculate, rear service ", and mobile subscriber terminal need to
Continue consumed flow, use cost is higher；Online user's capacity is seriously limited by the hardware size of ground strengthening system simultaneously,
When the capacity of zone user it is big to more than million grades when, to the dilatation credit requirement of this area's ground strengthening system software and hardware by number
Times less than 100,000 grades of system, and the O＆M cost in later stage will also greatly increase.Simultaneously when online user's quantity reaches necessarily
After magnitude, the computing resource consumption to system exponentially type will increase, and this will greatly prolong the hind computation time, efficiency of service
Substantially reduce, position requests service can not obtain real-time response, have a strong impact on the experience sense of user.Meanwhile, by communication bandwidth
Influence, while the number of users of service can be restricted, further, since using both-way communication, the security of background system is obtained not
To guarantee.
The content of the invention
In view of this, one of technical problem that the embodiment of the present invention is solved is to provide a kind of high accuracy based on grid
Localization method and device, to overcome in the prior art, O＆M cost is high, background system is hidden in the presence of safety simultaneously for poor user experience
The defect of trouble, reaches that number of users is unrestricted, reduction use cost alleviates hind computation pressure and guarantee background system is safe
Effect.
In a first aspect, the embodiment of the present invention provides a kind of high-precision locating method based on grid, applied to server,
Including：
According to Sphere Measurement Model, earth surface is divided into the grid of close paving form, regenerated corresponding with grid comprising position
The recognizable grid code collection of confidence breath；
Obtain the difference information that the grid code concentrates each grid code, generate difference information collection, by the grid code collection with
Outwards broadcasted by the form including radio station, TV station or mobile communication base station after the difference information collection correspondence, wherein, it is described
Field where the difference information that the corresponding difference information of field where the grid code that grid code is concentrated is concentrated is adjacent, so that
User terminal carries out high accuracy positioning after can receiving the grid code collection and the difference information collection.
Alternatively, it is described to obtain the difference letter that the grid code concentrates each grid code in a specific embodiment of the invention
Breath includes：
Broadcast singal is received, the difference related to positioning included in the broadcast singal is calculated according to the broadcast singal
Divide information, the difference information includes satellite number and its corresponding pseudo-range corrections value, pseudorange rate of change corrected value and data phase
Number.
Alternatively, in a specific embodiment of the invention, in addition to：According to the grid code collection and the grid code collection
In each grid code difference information generation packet, and the packet is modulated.
In second aspect, the embodiment of the present invention provides a kind of high-precision locating method based on grid, for terminal, bag
Include：Current longitude and latitude position is obtained according to navigation system, grid code corresponding with current longitude and latitude position is generated；
The grid code collection and the grid code of the broadcast of the reception server end concentrate the difference information of each grid code, according to working as
The grid code of front position carries out grid code matching in the broadcast singal of reception, obtains the corresponding difference information of the grid code,
With reference to the observation of satellite, current elaborate position is calculated.
Alternatively, in a specific embodiment of the invention, in addition to：
The grid concentrated to the modulated grid code collection broadcasted including server end received and the grid code
Packet including the corresponding difference information of code is demodulated.
In the third aspect, the embodiment of the present invention provides a kind of high-precision positioner based on grid, including with above-mentioned reality
The corresponding system equipment of high-precision locating method that server is applied in example is applied, and, with being applied to eventually in above-described embodiment
The high-precision locating method counterpart terminal equipment at end.
From above technical scheme, the embodiment of the present invention by by the prior art it is complicated " first request, it is rear calculate,
Service again " serial, active service mode, be changed into parallel, the passive service mode of simple " reception+matching ", solve height
The bottleneck of the number of users limitation of precision position service, reduces the use cost of user, alleviates the pressure of hind computation and leads to
Believe bandwidth pressure, improve the security of system of service platform.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in inventive embodiments, for those of ordinary skill in the art, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 show the flow chart of the high-precision locating method based on grid of the embodiment of the present invention one；
Fig. 2 show the flow chart of the high-precision locating method based on grid of the embodiment of the present invention two；
Fig. 3 show the structure chart of the high-precision positioner based on grid of the embodiment of the present invention three.
Embodiment
Certainly, implementing any technical scheme of the embodiment of the present invention must be not necessarily required to while reaching all excellent of the above
Point.
In order that those skilled in the art more fully understand the technical scheme in the embodiment of the present invention, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described reality
It is only a part of embodiment of the embodiment of the present invention to apply example, rather than whole embodiments.Based on the implementation in the embodiment of the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained should all belong to the scope of protection of the embodiment of the present invention.
As shown in figure 1, the flow chart of the high-precision locating method based on grid for the embodiment of the present invention one.It includes：
S101：According to Sphere Measurement Model, earth surface is classified to the grid for being divided into close paving form.
In the present embodiment, first by the development of a sphere of earth model into planar graph, then by the planar graph of expansion draw
Be divided into that size is nested, shape is similar, both seamless or nonoverlapping discrete grid block, the discrete grid block is by earth model sphere exhibition
The planar graph opened is completely covered, and goes to the region of the planar graph to correspond.
S102：The generation recognizable grid code collection for including location information corresponding with the grids at different levels.
By being encoded to the grid in grid so that each grid has global unique encodings, the coding has
The features such as can identifying, can position, each grid code can be corresponding with specific region on the earth.So just can area by grid code
Divide tellurian specific region.
S103：Obtain the difference information that the grid code concentrates each grid code.
In position fixing process, the communication between satellite and base station is influenceed that some mistakes can be produced by atmosphere and time clock
Difference, the difference information is the correction carried out to the error of generation, so as to realize precise positioning.
S104：Difference information collection is generated, the grid code collection and the difference information collection are passed through including radio station, TV station
Or the form of mobile communication base station is outwards broadcasted.
Wherein, the difference information institute that the corresponding difference information of field where the grid code that the grid code is concentrated is concentrated
Field it is adjacent, by way of broadcast, user terminal need not produce data interaction between server, it is only necessary to receive broadcast
Signal can just receive the grid code collection and the difference information collection carries out high accuracy positioning.
The high-precision locating method based on grid of this implementation, passes through " first asking complexity in the prior art, counting afterwards
Calculate, service again " serial, active service mode, be changed into parallel, the passive service mode of simple " reception+matching ", solve
The bottleneck of the number of users limitation of high precision position service, reduces the use cost of user, alleviate hind computation pressure and
Communication bandwidth pressure, improves the security of system of service platform.
As shown in Fig. 2 the flow chart of the high-precision locating method based on grid for the embodiment of the present invention three.Originally implement
Method be mainly used in terminal, including：
S201：Current longitude and latitude position is obtained according to navigation system.
Terminal is obtained by satellite navigation system behind the longitude and latitude position of oneself, and existing terminal device generally carries satellite
Positioning function, such as relatively common mobile phone, when opening GPS location, just can obtain current longitude and latitude position.
S202：Generation grid code corresponding with current longitude and latitude position.
S203：Receive the grid code and the corresponding difference information of the grid code of broadcast.
The server end moment concentrates the difference information of each grid code in radio network trellis code collection and the grid code, works as user
When needing to be accurately positioned current location, broadcasted content just can be received, and then current location is accurately positioned.
S204：The grid code is matched with the grid code in the broadcast singal, the grid code correspondence is obtained
Difference information.
Matched by the code section for the grid code for concentrating the grid code of user terminal with the grid code broadcasted, it is right paragraph by paragraph
Than, obtain with the grid code identical grid code, while obtaining the difference information of the grid code, be accurately positioned so as to realize.
S205：Obtain current elaborate position.
It is described that elaborate position information is calculated with reference to other Satellite Observations according to difference information.
As can be seen here, in high precision position service, high precision position service is carried out using the broadcast mode based on grid,
By serial, the active service mode of current complicated " first request, rear calculate, service again ", it is changed into simple " reception+matching "
Parallel, passive service mode, in this way after, following clear superiority will be brought：
Due to using broadcast mode, the customer volume that can be serviced simultaneously is unrestricted, in the Internet of things era now, solves height
The bottleneck of the number of users limitation of precision position service；
Simultaneously without producing network traffic data, the use cost of user is greatly reduced.
High precision position service is carried out by using the broadcast mode based on grid, can be provided with high precision position service
The pressure of business's hind computation and communication bandwidth pressure, greatly save the computing resource and energy resources of society.
Finally, due to using broadcast mode, only carry out one-way data transfer, greatly improve high precision position service and put down
The security of system of platform.
The embodiment of the present invention also provides a kind of high-precision positioner based on grid, is illustrated in figure 3 implementation of the present invention
The structure chart of the high-precision positioner based on grid of example four, the high-precision positioner based on grid is set including system
Standby 301 and terminal device 302.The system equipment 301 includes server, and the server, which is used to perform, includes above-described embodiment
One and embodiment two method including method, the terminal device 302 include processor, the terminal device 302 be used for wrap
Include the method including above-described embodiment three.
The said goods can perform the method that the embodiment of the present application is provided, and possesses the corresponding functional module of execution method and has
Beneficial effect.Not ins and outs of detailed description in the present embodiment, reference can be made to the method that the embodiment of the present application is provided.
The electronic equipment of the embodiment of the present application exists in a variety of forms, includes but is not limited to:
(1) mobile communication equipment:The characteristics of this kind equipment is that possess mobile communication function, and to provide speech, data
Communicate as main target.This Terminal Type includes:Smart mobile phone (such as iPhone), multimedia handset, feature mobile phone, and it is low
Hold mobile phone etc..
(2) super mobile personal computer equipment:This kind equipment belongs to the category of personal computer, there is calculating and processing work(
Can, typically also possess mobile Internet access characteristic.This Terminal Type includes:PDA, MID and UMPC equipment etc., such as iPad.
(3) portable entertainment device:This kind equipment can show and play content of multimedia.The kind equipment includes:Audio,
Video player (such as iPod), handheld device, e-book, and intelligent toy and portable car-mounted navigation equipment.
(4) server:The equipment for providing the service of calculating, the composition of server includes processor 810, hard disk, internal memory, system
Bus etc., server is similar with general computer architecture, but is due to need to provide highly reliable service, therefore in processing energy
Require higher in terms of power, stability, reliability, security, scalability, manageability.
(5) other electronic installations with data interaction function.
Device embodiment described above is only schematical, wherein the module illustrated as separating component can
To be or may not be physically separate, the part shown as module can be or may not be physics mould
Block, you can with positioned at a place, or can also be distributed on multiple mixed-media network modules mixed-medias.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Understood based on such, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can be stored in a computer-readable storage medium, the computer readable recording medium storing program for performing include be used for
The readable form storage of computer (such as computer) or any mechanism of transmission information.For example, machine readable media is included only
Read memory (ROM), random access memory (RAM), magnetic disk storage medium, optical storage media, flash medium, electricity, light,
Sound or the transmitting signal of other forms (for example, carrier wave, infrared signal, data signal etc.) etc., the computer software product includes
Some instructions are to cause a computer equipment (can be personal computer, server, or network equipment etc.) is performed each
Method described in some parts of individual embodiment or embodiment.
Finally it should be noted that：Above example is only limited to the technical scheme for illustrating the embodiment of the present application, rather than to it
System；Although the application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：Its
The technical scheme described in foregoing embodiments can still be modified, or which part technical characteristic is equal
Replace；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technical scheme of the application
Spirit and scope.
It will be understood by those skilled in the art that the embodiment of the embodiment of the present invention can be provided as method, device (equipment) or
Computer program product.Therefore, the embodiment of the present invention can be soft using complete hardware embodiment, complete software embodiment or combination
The form of the embodiment of part and hardware aspect.Moreover, the embodiment of the present invention can be used wherein includes calculating one or more
The computer-usable storage medium of machine usable program code (includes but is not limited to magnetic disk storage, CD-ROM, optical memory
Deng) on the form of computer program product implemented.
The embodiment of the present invention is with reference to method according to embodiments of the present invention, device (equipment) and computer program product
Flow chart and/or block diagram are described.It should be understood that can be by every in computer program instructions implementation process figure and/or block diagram
One flow and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computers can be provided
Processor of the programmed instruction to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices
To produce a machine so that produce use by the instruction of computer or the computing device of other programmable data processing devices
In the dress for realizing the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames
Put.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Claims (6)
1. a kind of high-precision locating method based on grid, it is characterised in that including：
According to Sphere Measurement Model, earth surface is divided into the grid of close paving form, regenerated corresponding with the grid comprising position
The recognizable grid code collection of confidence breath；
Obtain the difference information that the grid code concentrates each grid code, generate difference information collection, by the grid code collection with it is described
Outwards broadcasted by the form including radio station, TV station or mobile communication base station after difference information collection correspondence, wherein, the grid
Field where the difference information that the corresponding difference information of field where grid code in code collection is concentrated is adjacent, so that user
End can receive the grid code collection and the difference information collection carries out high accuracy positioning.
2. the high-precision locating method according to claim 1 based on grid, it is characterised in that the acquisition grid
The difference information of each grid code includes in code collection：
Receive broadcast singal, calculated according to the broadcast singal it is being included in the data with positioning difference information, it is described
Difference information includes satellite number and its corresponding pseudo-range corrections value, pseudorange rate of change corrected value and data issue.
3. the high-precision locating method according to claim 1 based on grid, it is characterised in that also include：
The difference information for concentrating each grid code according to the grid code collection and the grid code generates packet, and to the number
It is modulated according to bag.
4. a kind of high-precision locating method based on grid, it is characterised in that including：
Current longitude and latitude position is obtained according to navigation system, grid code corresponding with current longitude and latitude position is generated；
The grid code collection and the grid code of the broadcast of the reception server end concentrate the difference information of each grid code, according to present bit
The grid code put carries out grid code matching in the broadcast singal of reception, obtains the corresponding difference information of the grid code, with reference to
The observation of satellite, calculates current elaborate position.
5. the high-precision locating method according to claim 4 based on grid, it is characterised in that also include：
The grid code pair concentrated to the modulated grid code collection broadcasted including server end received and the grid code
Packet including the difference information answered is demodulated.
6. a kind of high-precision positioner based on grid, it is characterised in that including with described in Claim 1-3 any one
The corresponding system equipment of high-precision locating method and with profit require that the high-precision locating method described in 4 to 5 any one is corresponding
Terminal device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710358449.9A CN107182124A (en) | 2017-05-19 | 2017-05-19 | A kind of high-precision locating method and device based on grid |
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| CN201710358449.9A CN107182124A (en) | 2017-05-19 | 2017-05-19 | A kind of high-precision locating method and device based on grid |
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| CN110488332A (en) * | 2018-05-14 | 2019-11-22 | 广州市中海达测绘仪器有限公司 | Method and device based on technology of network RTK |
| CN110531395A (en) * | 2019-09-05 | 2019-12-03 | 北京百度网讯科技有限公司 | Method, apparatus, equipment and computer readable storage medium used for positioning claim |
| CN111781618A (en) * | 2020-07-08 | 2020-10-16 | 深圳思凯微电子有限公司 | Satellite navigation differential data receiving method, device, equipment and storage medium |
| CN111885699A (en) * | 2020-05-21 | 2020-11-03 | 北京嘀嘀无限科技发展有限公司 | Method and system for determining current position of user |
| CN112799106A (en) * | 2021-03-30 | 2021-05-14 | 腾讯科技（深圳）有限公司 | Satellite observation information processing method, mobile terminal and storage medium |
| CN113075705A (en) * | 2020-04-23 | 2021-07-06 | 中移(上海)信息通信科技有限公司 | Positioning software development kit, positioning method and chip |
| CN113932793A (en) * | 2021-09-24 | 2022-01-14 | 江门职业技术学院 | Three-dimensional coordinate positioning method and device, electronic equipment and storage medium |
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| CN113932793A (en) * | 2021-09-24 | 2022-01-14 | 江门职业技术学院 | Three-dimensional coordinate positioning method and device, electronic equipment and storage medium |
| CN113932793B (en) * | 2021-09-24 | 2024-03-22 | 江门职业技术学院 | Three-dimensional coordinate positioning method, three-dimensional coordinate positioning device, electronic equipment and storage medium |
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